Home / 5,118.98-7,063.62-2,881.63

Finding the Fourth Proportional to 5,118.98, 7,063.62 and 2,881.63

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Solution

The fourth proportional to 5,118.98, 7,063.62 and 2,881.63 is: 3,976.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.98 : 7,063.62 = 2,881.63 : x
  2. Step 2: Convert to fraction form
    5,118.98/7,063.62 = 2,881.63/x
  3. Step 3: Cross multiply
    5,118.98x = 7,063.62 × 2,881.63
  4. Step 4: Simplify right side
    5,118.98x = 20,354,703.98
  5. Step 5: Solve for x
    x = 20,354,703.98/5,118.98
  6. Step 6: Final answer
    x = 3,976.32

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.